Tumour-infiltrating Langerhans cells in non-melanoma skin cancer, a clinical and immunohistochemical study.

Non-melanoma skin cancer, including basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) represents 78.5% of all skin malignant tumours in Egypt. Dendritic cells can be found in almost all human tumours, they play an important role in antitumour immunity.